The EnviroLink Network is a non-profit organization that provides access to various online environmental resources.

With 68 member countries FoEl is a federation of autonomous environmental organizations from all over the world. They campaign for urgent environmental and social issues of today, while urging a shift toward sustainable societies.

With 2.8 million supporters in 40 countries, Greenpeace uses research, lobbying, and quiet diplomacy to reach their goals to expose environmental criminals, and to challenge government and corporations to ensure the protection of the environment.

IRN supports local communities working to protect their rivers and watersheds. They work to halt destructive river development projects, and to encourage equitable and sustainable methods of meeting needs for water, energy and flood management.

By working with communities and businesses, Nature Conservancy aims to preserve the plants and animals that represent the diversity of life on Earth by protecting the lands and waters they need to survive

Rainforest Action Network works to protect the Earth's rainforests and support the rights of their inhabitants through education, grassroots organizing, and nonviolent direct action.

SSCS is an organization dedicated to protecting the marine environment with a particular focus on halting illegal fishing activities.

UNEP works with a wide range of partners to provide leadership and encourage partnerships in caring for the environment by enabling nations and peoples to improve their quality of life without compromising that of future generations.

Bringing together States, government agencies and a diverse range of NGOs in a unique world partnership, the WCU builds on the strengths of its members to enhance their capacity to safeguard natural resources at local, regional and global levels.

With almost five million supporters distributed throughout five continents, WWF has over 28 National Organizations and can safely claim to have played a major role in the evolution of the international conservation movement.